Don’t Point at Signs for the Blind, and Don’t Shout to the Deaf.

Some people will never accept the truth. They’ll come to you and pretend to want to have a “discussion,” but in reality, they only want to hear themselves yack on and on. Be kind, be polite, and leave them. These people never intended to hear your side in the first place.
It may seem harsh, but for them, God has a unique solution: 

He’ll blind them to the truth they never wanted to hear anyway. 

Scriptural Reference:
 “Paul and the Jews chose a day for a meeting. On that day many more of these Jews met with Paul at his house. He spoke to them all day long, explaining God’s kingdom to them. He used the Law of Moses and the writings of the prophets to persuade them to believe in Jesus. Some of the Jews believed what he said, but others did not believe.” Acts 28:23, 24 (ERV)

“[The Lord] said, “Go and tell this people: “ ‘Be ever hearing, but never understanding; be ever seeing, but never perceiving.’ Make the heart of this people calloused; make their ears dull and close their eyes. Otherwise they might see with their eyes, hear with their ears, understand with their hearts, and turn and be healed.” Isaiah 6:9,10 (NIV)

Application:
There comes a time when you have to stop arguing with people. Leave them to their own fate. Save your energy for those who are willing to hear the truth. 

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